iPhone As Remote Control?

So I think this idea is interesting:

Tucked away in Apple's pre-release version of iTunes 7.7 is word that the iPhone and iPod touch will soon act as remote controls for nearby computers.

I frequently listen to music piped from my MacBook Pro to my AppleTV wirelessly while I read across the room. And if I can use my iPhone as a remote control to change albums that would be very, very neat.